Segmented Ozone Generator Electrodes with Independent Power Control

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Solution Overview

Problem

Ozone generators face challenges in achieving high energy efficiency and ozone concentration, leading to increased energy consumption and larger generator sizes, as ozone tends to recombine and decay, necessitating a compromise between energy efficiency and gas concentration.

Innovation Solution

The ozone generator employs independent electric power sources for each section, allowing for optimized energy supply by controlling power, voltage, current, frequency, waveform, and duty cycle based on local ozone concentrations, ensuring efficient energy delivery and increased ozone production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single power source is used for the entire electrode, then the device complexity is reduced, but the energy efficiency and ozone concentration optimization capability deteriorate

Engineering Contradiction:
Improvepower supply structureVSAvoidenergy efficiency
Core Design Contradiction:
Device complexityVSUse of energy by moving object

Solution Approach 1:

The electrode is divided into multiple sections along the gas flow direction, with each section independently powered by a separate power source. This segmentation allows each section to be optimized for its local ozone concentration conditions, improving overall energy efficiency while maintaining manageable device complexity through modular architecture.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each section of the electrode receives customized electrical parameters (voltage, frequency, power) tailored to its specific local ozone concentration. This local optimization ensures that energy is efficiently converted to ozone production in each segment rather than using a uniform approach that cannot adapt to varying conditions along the gas path.

Inventive Principle:
Principle #3Local quality

2Productivity

If the gas residence time is increased to achieve desired ozone concentration, then the production capacity is improved, but the generator size increases

Engineering Contradiction:
Improveozone production capacityVSAvoidgenerator size
Core Design Contradiction:
ProductivityVSVolume of moving object

Solution Approach 1:

Instead of increasing residence time by extending the physical length of the generator, the invention changes electrical parameters (voltage, frequency, power distribution) across different sections to enhance ozone production rate. This allows achieving higher concentrations without proportionally increasing the generator volume.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The system dynamically adjusts electrical parameters in each section based on real-time ozone concentration feedback, allowing optimization of the production rate without requiring fixed, oversized dimensions. This dynamic control enables compact design while maintaining high productivity.

Inventive Principle:
Principle #15Dynamics

3Quantity of substance

If the ozone concentration is increased to reduce gas volumes and investment costs, then the cost efficiency is improved, but the energy efficiency deteriorates due to ozone decay

Engineering Contradiction:
Improveozone concentrationVSAvoidenergy efficiency
Core Design Contradiction:
Quantity of substanceVSUse of energy by moving object

Solution Approach 1:

The system dynamically adjusts electrical parameters in each section based on local ozone concentration levels. In sections where ozone concentration is high and decay is significant, the parameters are modified to balance production and destruction rates, maintaining energy efficiency while achieving high overall concentration output.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

By changing electrical parameters (voltage, frequency, power) across different sections, the system optimizes the balance between ozone production and decay. This allows operating at high concentrations without the energy penalty that would result from uniform high-power operation throughout the entire generator.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3052438B1Ozone generator
Publication Date: 2021.04.21 DEGREMONT TECH
  • EP3052438B1 patent drawingFigure 1~5
  • EP3052438B1 patent drawingFigure 6~8

AI summary

The invention relates to a continuous ozone generator comprising: at least two electrodes (1, 2), with a dielectric medium placed between the electrodes, said electrodes defining discharge gaps (4); an input end (E) for circulating an oxygen-loaded gas to an output end (S); at least one electrode (1) being made up of at least two segments (1.1a1... 1.1b2), placed one behind the other in the direction of the flow of the gas; means (R) for cooling the electrodes, and means (A) for supplying electrical current so as to establish voltage between the electrodes and cause discharges within the gaps where the gas flows. The segments of the electrode (1) are divided into at least two electrically separate groups (1a, 1b), and the electrical current supply means (A) includes at least two separate electrical supply stages (PSU1, PSU2), respectively corresponding to each segment group (1a, 1b), thus ensuring that power is provided by each stage while taking into consideration the local ozone concentration, while power supply optimization means (G1, G2) are provided to, respectively, control each electrical supply stage (PSU1, PSU2).